[GEORGE ANDERSON]

Expert?...well maybe lots of experience....at any rate...Shelby heads can be worked to be a great head too...but the Edelbrock geometry is better for what you're doing....not to say they don't also need some TLC to improve them a but too....but much less and they are a safer head to use for most street engines being built by less experienced shops....although I would never use them as they come from Edelbrock assembled....the Valve work and machine practices used by them needs to be improved. Most good shops would prefer to buy bare heads and do the final work themselves...Good luck with your project!
George