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Understood. Looking at the gasket maker, the biggest size I can get would be .093 with a bore of 4.060 and not requiring o-rings. I think that might reduce me by close .75 of a ratio point. So maybe near 10.25:1 Sound right? Any chance I would have issues with my intake fitting right?

Not yet. I plan to, but with two kids, (ages 3 and 1) it's hard to get garage time. :) Stay tuned. . .I will update when I get a chance. I was just trying to think about plans for what if scenarios.

Check my logic please. :) So I'm going to try nearly all of the suggestions that were given. In the event however that there does not appear to be an issue with my distributor, balancer, or timing chain. . .I think I'm back to too high of compression. Which means I have to work on reducing...

YIKES!!!!!! But if it lets me keep my original equip stuff, it might be worth. Is there any known cranking psi to compression ratio charts? I'm guessing I will only get one shot to get the right. My current cranking psi is close to 220. If 220 was say 11:1, then maybe I can guesstimate...

Yes!! Big Thanks!!! Just need to confirm and fix. Hopefully that's it.

LOL!!!! Then that would be the best place!! :L Clearly you trust their products. I've never heard of them. . .but that's not surprising.

Hmm. . .i would never say the noise sounds like "pining" or even marbles in a can. It sounds VERY similar to that video. I was trying to describe it as a drummer doing a series of quick rimshots on the snare drum. . .directly in sync with RPM speed. A fast "tack tack tack" sound. I wish...

I saw some at summit racing. ..but I thought they were all copper. I will look for the composite. Wheres the best place for SCE?

I'm using the Lectriclimted Breakerless SE electronic ignition. . .no points, so dwel should not be an issue. I suppose that unit could be toast. . .but I doubt it. Car runs cool. . .never gets above 200 even on the hottest days. I'll pull the distributor and check it over and for proper...

YES!!!!! Bud not nearly as loud. And only happens when I get on it under load!!

I should add that I ran a quick test tonight. I reached into the ignition cover and man handled the distributor over and added about 1/8 turn advance. Just to see if it made a difference. I could not get the car over 1500 rpm wihtout the noise happening. Then I man handled the distributor in...

Yeah I don't know. I will pull the cap tommrow and have a look. I want to have it recurred by come one with a machine, just to be sure. Seemed to get much worse with the new rockers. The comp cam magnums. I really want to try to keep it original if possible. Plus have a 72 454 I'm...

Ok, sorry for the miss quote. I must have miss read that. I guess I'm confused as to why the problem is getting worse over time. It didn't do this when I first bought the car. Could the distributor be wearing? Springs weakening. . .vaccum advance going wrong? I'm planning on getting the...

It's the stock lt-1 cam. Cranking psi is close to 220 per cylinder.

I've read other posts from JohnZ and Hib saying that 11:1 on 93 is possible without detonation. . .and I would have agreed for 4 of the 5 years of my ownership. Now i'm getting issues. . .and I'm not sure of the cause.

A bit of a story, so bear with me. My 1970 L46 (350/250) came from the factory with 11:1 compression. The previous owner swapped all the internal parts for correct 1970 LT-1 parts when he had it rebuilt. During the rebuilt, the engine was bored .030 over, and he put in TRW forged pistons that...

20 amp fuse

Hey all! Just replaced my driver side courtesy switch. Only to find that the white wire got very hot and melted through the plastic on the end of he switch. Part of the white wire covering on that end also melted before the fuse blew. Any ideas on what could be causing this? -Jon

Ok, so I'm in the middle of restoring the interior of my 1972 AC car. I've removed the box from the inside the car, and disassembled it. Long story short, I found this car in a barn in the wood. . .and it was infested with mice. The cleanup has been very time consuming. . .not to mention...

Yeah wall mart carries Mobile 1 10w30 High Mileage in tha 5 quart container for something close to $20. Great price. The purolator classic oil filter they have there is nice as well.