I finally got to make a few passes with the new combo after finally sorting out my vaccum/rough idle problem, refer to my other threads for reference to my earlier problems. First pass was a 12.05@111.14 mph, I was alittle disappointed but glad that it was running much better than it did a week ago. On that pass fp was set at 43psi, and I moved it to 45psi for the next pass and run a slightly spining 11.96@ 111.44 mph. After that I left the fp alone and made passes of 12.10@111.2 mph and 12.15@109.8 mph with cooldown time in between. I was going to the lanes for my last run when the car started to stumble,at first I didnt know what was wrong. Then I said it must be way rich and just needed to race the motor to clear it out, I did that and it seemed to run fine. Then when I tried to do my burnout it started to stumble again, so I left the line really easy and then punched it, it stumbled for a second then went like hell. I came back around for another pass before they closed the lanes and the car seemed to be running fine, It did the burnout like usual, I staged up on the converter and left, it ran a 11.84@112.25 mph. when I got back to the pits my buddy said did you lose something? I had blown my plug out of my intake elbow where the air silencer used to be. My question is with the plug gone in my elbow was the engine seeing an increase in air over what the MAF metered giving me a leaner condition or did the engine lose metered air and have a richer condition? I want to know so I'll now which way to adj my fp.

Randy

 

Don't have any advice on blowing your intake elbow plug out, but the best thing you could do is take the car to Jeff Creech for some dyno tuning. He got 15 rwhp more out of mine, over and above the previous "custom" tune.