Mike,

Is your truck frame stock or does it have a front clip/mustang II suspension?

If you dig hard enough there is a place on the net that makes header flanges for the 4200. I had the link until one of my hard drives died.

Last edited by efi-diy; 03/28/09 04:01 PM.
51 GMC 4.2 turbo
Can't solved today's problems using the same technology/thinking that created them