WayneLBurnham
Well-known member
- Joined
- Dec 30, 2002
- Messages
- 304
- Location
- Dallas County, Texas
- Corvette
- '75 Modified Red Ragtop: "LEFTLN"
OK, I'm an idiot. I listened to the parts monkeys.
I think they went the wrong way on the heat of the RapidFires they gave me - anybody know the system on those?
Anybody have a general recommendation on plug selection and gap for a stock 350 SBC in a '75 auto with an aftermarket ignition (Mallory HyFire) and lots of decent bolt ons but no great guts, compression or cam?
These guys gave me RF #10's, which were gapped at 0.035". As my last plugs showed a little erosion, but not a lot and no black deposits, I said give me fairly COLD plugs. I altered the gap to 0.055" to make the most of the long spark duration, but a nagging midrange miss is increasing and I caught one reference to HIGHER number RF's being HOTTER plugs - but I couldn't follow it up.
I'm inspecting them tomorrow, but what are anybody's general choices?
Thanks for the input.
I think they went the wrong way on the heat of the RapidFires they gave me - anybody know the system on those?
Anybody have a general recommendation on plug selection and gap for a stock 350 SBC in a '75 auto with an aftermarket ignition (Mallory HyFire) and lots of decent bolt ons but no great guts, compression or cam?
These guys gave me RF #10's, which were gapped at 0.035". As my last plugs showed a little erosion, but not a lot and no black deposits, I said give me fairly COLD plugs. I altered the gap to 0.055" to make the most of the long spark duration, but a nagging midrange miss is increasing and I caught one reference to HIGHER number RF's being HOTTER plugs - but I couldn't follow it up.
I'm inspecting them tomorrow, but what are anybody's general choices?
Thanks for the input.