I got 4kGSK on mine, with the HD valve springs (fun to install.....NOT!!!), it will only go to 3900 no higher, but... at 3900 on the dyno it did 143MPH!!!!

Im selling the truck soon and im leaving all the springs in it and im prolly gonna buy another 4k kit with HD Valve Springs for my next truck and change the valve springs when it becomes spring and the local drag strip opens.

Would 5k's do anything different, other than RPM? it'd prolly make the fuel pedal awwfully touchy too. Just more ideas. it will have 0 plate 370's and a Phat shaft 62.

Also off the topic of GSK.

Delivery valves, laser cut?

Injection lines .093 or .120?

would .120 make it run lopey?

i know lots of questions but i was thinkin that with laser cut delivery valves, .120 lines and with the water/meth on, it should give enough fuel to make the phat shaft 62 actually do its job, and not be real hot, plus POWER!!!! and SMOKE!!!

Thanks,
Cody

 

ive heard both on the 120 lines that they get lopey, they are a little overkill for a street truck, 93's should be fine, STAY AWAY FROM SCHEID'S LINES though, they have horrible problems with leaking and breaking......you are going to need ALOT of fuel to hit 5K.....laser cut DV's are always a good choice.....