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Originally Posted by Humbucker
Actually, it's 5 sizes up. 
To fill you in better, I had the Ford crate 392, 430hp engine. I put AFR 185 heads on and a Victor Jr. intake. Those are the only changes I made.
Before that, the car ran perfectly. Very strong and streetable. This was on 71's in the front and rear of the carb. I'm thinking 73's in front and maybe 74's in rear to start with??
Perhaps the 76's I put in on Wednesday was waaaay too much. |
I keep coming back to this major jetting change. If the carb was correct with 71s before then it should be correct with 71s now. Drivability may not be perfect because of changes to the signal strength but, unless you modified the carb the jet requirments wouldn't have changed. I would put it back to what JET Perf had in it and call them.