alright vetran GM guys that know their ****.... I have a carbed 350 and I am going to be tuneing it on the dyno.... I talked to chris about tuneing and what all I should do. I am going to get the AF right and timing on the motor, on the dyno. then adjust back for the n20, and spray it on the dyno then tune it for AF like that. I will be running a 150-200 shot for sure... how far back on the timing, or do you reccomend i just keep going up on it until detonation occurs? I have jetted the carb for the a/f as it sits now, but I think I will have to do it again. Whats optimum A/f for motor/nitrous, how do i get it perfect... I want to put down some real numbers and make some real power.... Thanks for your help.
-Steve

I have a zz4 shortblock, l98 heads, 10.5 to 1 compression, 490 lift cam (dont remember specs) n20, 1.5 roller rockers, 670 carb, etc....

whats optimum timing on the motor, how far back for n20, etc...

 

You should probably ask this in the Power Adders forum as it's pretty specific to nitrous applications...