very happy with mine,been on about 18 months.
had to clearance them for 3/8 pushrods.pocket port and set valve heights,cut the deck to match my iron 906 combustion chamber - 78cc.even used supplied springs.i am using the 509 cam,m1 single plane manifold
numbers are in my sig
by the way even after this work i still had less in them than a set of eddys.

Tex

5828009-110709T&T.jpg (282 downloads)
Last edited by Tex013; 02/24/10 07:21 PM.
New best ET 10.259@129.65 .
New best MPH 130.32
Finally fitted a solid cam,
stepped it up a bit more
3690lbs through the mufflers
New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm
Power by Tex's Automotive