$1500 more is only a few $100 more....AFTER you sell your old heads
I listed my old 414 Edelbrock heads and sold them within 2 days so my "upgrade" was $2060 (new heads w/shipping) minus $1550 (sale of old heads = $510 dollars.
Didn't want to sell the old ones since they were already GREAT but I couldn't have picked up another 35 cfm out of porting them for only $510 net.
Sold my Fantastic 508RB to Paul PHJ426 which helped partially fund the new 517. Sold the 341 Mini stroker to help fund the 414....it's been that way for 30 yrs for me. What's cool is you can keep up with the old great stuff (and let someone else enjoy them) while keeping your knife sharp whittling on new projects,,,the only way I can keep my brain and hands occupied it to do new stuff....the only way I can keep from going broke (or getting divorced
) is to sell off the old.
I always line up to sell my old stuff BEFORE planning the new stuff...not as hard on the hip that way
I said a long time back..What if I can find that magic .2 to get me into the 10.20s...If I do..I spent a buttload of money for nothing. Ted 
