The 636 millenium is my motor. Why are they on there??

Simple and honest answer.... Came with the rolling chassis along with some other parts, so i thought i would try them.

Motor was built to be Big inch Low RPM. Also be NSS legal so dominators where not an option.

Jury is still out on them. Its a new combo for me. Motor starts easy, great on the street. very responsive. First track results where good. The 60 foot time was a soft. Leaving on the T brake the Racepak showed a flat spot in engine acceleration in the first second of the run. I believe the secondaries are opening too slow. The former owner of the carbs had the adjustment screws set all the in (in this case super slow opening). on this set after talking with the carb builder found out some vacum pods open faster by screwing in, these are the opposite. I expect to see a significant improvement the next time out. The results will tell.