Yes my name is Holden
Greetings Guys; Thank you for the input, more is welcome. And of course I'm sourcing other sources (opinions FB). But yesterday I got a bit more serious? I called Comp Cams, hadn't talked with them since 2013 when one of the founders called me as I had sent a letter (Yes USPS mail) with my phone #. Not only did he Mr Sparks Help me but filled my brain with so much info, gray goo was coming out my ears & he's still working, not retired yet. Anyway got a well informed young man & picked his brain for all I was worth. From his experience as a tech adviser & talking with 100's of us Car Nuts in particular many Holden - GTO owners. Our converters are Ok till 225* @ .050" & @ 228* the'er a buckin"! So my 222* @. 050" is a bit conservative with a OE converter. One of my most curious questions, COMP Cams 7228TS-KIT Conical Valve Spring Ts Ls Type: What is the max lift these springs can handle? Keep in mind any mass we add to the valve train is our enemy! And I had Titanium & Aluminum retainers in the past. I'm very much in favor of Tool Steel now days, supper thin & strong, plus last for ever. Oh yes the budget, I finely worked on it, $4000 & I got to port my own heads? Later Ole' Bob.