mikestang63
SN Certified Technician
^^^ I agree bro!
(edit) @mikestang63 Doesn't the custom cam guy want you to run certain springs, locks & retainers for their cams? Makes the $50 difference go up exponentially if so. What your $.02?
Of course they are going to recommend their spring kit. That doesn't mean you have to run it nor does Ed push it on you. Plenty of guys (including me) have run Comp Cams or TFS upgraded springs with custom cams. However, that doesn't answer the question if the current springs the OP has on those heads are sufficient for the cam he chose. If not, he needs new springs regardless. Then it's a question of what springs to go with- ones sold by the cam manufacturer or ones sold by a custom cam grinder.
You can order TFS heads with springs rated at .550 or .600 lift I believe.