randy331 wrote:How big is the Ex port now?
Dunno for sure, but based on the pic's down the end of that 1.75" od pipe.. I'd say he's in or close to the 1.5" X 1.5" size range. Definitely more flowz than the intake design will probably ever be able to make use of. lol
16 or 18 gauge? Would be nice to know what wall thickness that pipe is to better scale it.
The turbulence/stall issue would bother the hell out of me as the head left my bench. If it happens on a static flow bench it 'll sure as hell rear its ugly head even earlier in the lift and power range than you'd probably be happy with. Then again.. we used to live with the old Cleveland heads shortcomings by keeping the valve lift in check/within the stable flow range and they made decent enough power for what they were. Those ports actually howled! Might just be time to call it good enough for the task at hand.