Ok well I ran my car last weekend and on my very first pass right as i shifted into 2nd gear the car sounded like it just went flat but it only lasted for a split sec then pulled through it. Made a few more passes and then it did it again. I have already changed the plugs wires and put a new fuel pump in. Mods are ARE forged short block, GTP S2 heads 230 230 .591 110LSA XER cam Oh and I should say this all happened after putting the new fuel pump in and plugs and wires. The only other thing I can think of would be the injectors are being maxed out, there still the stock 2000's

 

Nobody

 

Log the runs on a scanner, and try shifting softly to see if it happens then.