Comp cams xe268h for 318

I used an Ed Performer intake, the triple primary boosters on the Street Demon give it great idle and sharp breakaway response which I liked, the large secondary gives whats needed on top.

I have found that 318 valve guide heights are not even from poor factory machining and anymore than .450" of lift should have retainer to guide clearance checked. To be sure I used a Comp Cam P/N 4726 tool to cut down top of guide and cut for positive locks, I used Comps recommended springs, retainers and locks as well. Mine was a fresh .030" over rebuild with stock cast pistons.

If I was doing the same engine for a car with stock converter I would use the XE 262 H. I have started to like the Howards products too.

http://www.compcams.com/catalog/COMP2012/pdf/COMP_Catalog_2012_362.pdf