FoxGT

Possible I may have floating at higher rpm. I turn it to 6krpm quite often with no noise & i've had this engine apart multiple times with zero damage to valves or pistons. As for the springs they aren't binding, but they are fairly close yes. I checked ptv clearance before I ran the cam & I checked the springs to see how close they were to binding. I didn't just throw this together & expect it to run.

Like I said though, I don't recommend running any stock valvetrain parts with the cam. But I have over 30k on mine with no problems & helped a friend install one on his 5.0, he has a little under 15k to my knowledge on stock valvetrain, so I know very well it's possible.

mjr46

some win wit stock springs some don't an e -cam I had in my 92 didn't like stock springs at all..would hit a wall at 5600 and break up bad!! switched to f-cam and proper springs and wham!!! fixed....the f-cam and stock bottom end will not cause ptv issues ecpecially with stock heads I have a set on mine and no ptv issues..irregardless you should always check for ptv... I have installed that cam many times for friends and no issues but you need the proper springs and retainers

1992gt400hp

in going to be putting edelbrock springs in my heads this week... anyone know which ones i should get with the x cam? theres like 4 different types they make for sbf...

PJC Racing

Stay away from Edelbrock springs. Nuff said.