Posted by Ken Dunnington on Tuesday, November 28, 2006 at 6:56PM :
In Reply to: Re: Looking for NP 54X 5spd OD Trans posted by jim in n.y. on Saturday, November 25, 2006 at 2:41PM :
I noticed you still have the GG exhaust manifold on there. You might consider changing to one of the cast ones. That GG manifold is very restrictive. Some knowledgeable folks have estimated 10+ HP can be gained right there. Those Al block 3-53s have been built up to 150 HP, and lived...
Great looking engine. Did you stay with the SM420?
Ken