i am currently using a 125 shot (zex wet kit) and the performance is excellent and the car runs smooth...i have ngk tr6 plugs gapped to 0.38... now i am getting a little greedy and want to go with a 150 shot...i have only minor mods and no chip to remove any timing.. i also have a completely stock fuel system...is it ok to go with the 150 shot?? any body using a 150 shot on a stock motor??

 

sure you can

 

if the 419/461 is your power with the 125 shot you should be just fine stepping to the 150 pills as you sit.

 

yea the 419/461 is with the 125 shot....zex seems to over rate. now is 150 the limit or can i mabye get a 175 shot??? or is a 150 shot cutting it close..

 

do the 150 and not get greedy get a fuel pump for the 175