273 blower cam

If you currently have a solid lifter setup, I'd consider hydraulic flat tappet a downgrade.

Just spec out another solid cam if you are after something different
I have to agree with you and plan on putting the money elsewhere. Seems like a risky thing to do when it's already working good.
I had a Comp. cam H.E. 280-480 {it was perfect }in my dyers 6-71 ,340 very very mild setup 13% underdriven .forged pistons and crank, X heads .,Instant tire smoke!3.55 gears It was fun . few years ago .
Speaking of a handful! The way these things transform an engine is amazing. What were you making, 10psi?