Originally Posted by sds10racer
this is a 355 with a gm hot cam kit, vortec heads w 1.6 crane gold rollers, rpm air gap with 13/4 spacer. 4.86 gears, 31.10.50 w m/t. all this has got me down to 1.58-1.60 60ft and 11.74 1/4 mile and 115 mph. the timing at the time of these runs was 38 at 3600. have put a recurve kit in the dist and am going to mess with it at the track this weekend to see what will work best. am bringing up the rpm's to 2800 and leaving from there. any lower than 2500 and the hesitation comes in. it's a small one but enough to loose on the 60 ft time. the launch is hard enough to spin the rim 1/4 inc each time i leave. hope thats enough as i have to go back to work now
thanks, charlie
Somewhere between 36 and 38 deg. should about right for that engine. If your spinning the rims in the slick you better get some screws in them. try some of the tuning techniques advised and I think your problem will go away. But remember do one change at a time. To many changes at once could make it worse and then you won't know where your tune up is.