- Jul 9, 2003
- 1971 Stingray Bridgehampton Blue
Ok, sorry it took to long to get back on this. Here are the facts & numbers. I changed out the stock intale manifold to a Edelbrock 2101 aluminum. I wanted to put a 1" spacer under carb. For every 10 dreeges lower in temp = 1% in hp gain. A 1" spacer WON'T fit, BUT a 3/4" will. I have at lease a 1/2 to 3/4 clearance from the hood. I had the 1" phenolic spacer cut down to 3/4". You can use the same fuel line to the carb and the same choke rod. Here's the trick to the choke. Take the thin housing cover over the spring off and turn the rod that's goes to the spring around/reverse, It works like a charm. Here are the temp # using a Tel-Fast non-contact thermometer. Before intake runners 229 after 152. Exhugst 361 before 303 after. I also have ceramic coated shoryt headers. Temp readings 469 before 352 after. Hope this helps, anyone with question please ask. Pic's let me know.