Thanks for all the reply's guys. Here's a few answers. Running 3:17 1st gear, car weighs 4,240#, 2 Eddy 500's.... I put a cold air induction set up from Jim Sullivan (nice) before going to a spring T&T. It was cool out and I ran right on the fastest time from the past. Next time out...way rich (warmer weather?) I was out 5 times last year and am still messing with jetting. Running about the same as before the new induction. I didn't get many runs in for tuning at Bowling Green, National Trails, and raind out at a race in October. Still at it. Haven't gained much with the cold air induction yet. I figured I should pick up a tenth??? What you say??and that would put me up against 11:50 and the roll bar rule. If I go with McQuillin intake I believe I will have to go to a fiberglass hood and scoop for clearance. I had to trim some bracing out of my stock hood to clear the induction now. Also, I would have to have Jim re-do the carb spacing for the McQuillin as it Is different than my Eddy intake. Looks like I need to educate myself more on tuning these carbs, or maybe go to 600's. Is my thinking correct that I can get plenty of gas through the 500's but maybe not enough air to utilize that gas, and need to go with 600's?
EDIT...btw..I've only been changing the primary jetting.
EDIT...btw..I've only been changing the primary jetting.
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