Large port vortecs

[ProPower engines]

11:1 slightly ported 225's vortecs with 2.05 1.6 valves heads flow 290 stock with 2.0 1.55 valves 630" solid roller 6" rods eagle crank super Vic intake 850 carb

Explain the term 225's vortecs you used.
Are you referring to a head with a 225 runner that has a vortec intake pattern???
The reason I ask is I don't believe you can get a 2.05 valve in a factory GM 906 vortec head. the 062 maybe as they did not use a hard seat installed at the factory making the bigger valve possible.

[rocketracer380]

No these are gm bow tie vortecs 225 runner they make 185 and 225 cc these are the later 19331472 is the part number they flow 290@ .600" stock