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A lot of good info here, my lift is 645 so I have decided to send my heads to Katech for porting and assembly. I have purchased so far the harden push rods BTR, Texas Speed upgraded springs, Smith Brothers Kit, and LS7 lifters. After reading this post and what oldman has said I am getting harden valves and I probably will purchase another set of lifters. GPI has the race LS7 lifters that are an upgrade on the LS7 lifters. My car is not a daily and will be a weekend car, not high mileage so that should help. 1/4 of a Mile at a time. Lol
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LT4 1.7 Supercharger snout ported & Meth
103 Katech TB, KATECH Custom Heads, DSX In-line fuel
TSP Headers, Spec P Super Twin Clutch, TSP EL C7 CAM
Diamond Piston & Manley Rods, Roto Fab Big Gulp
BTR Push Rods,LS7 Lifters, ARP, FI Chiller, Kirkey Seats
SJM Line Lock, Hurst Pistol Grip. 747/739 RWHP street tune - 821/794 RWHP track tune 101 octane.
2014 Mini Cooper countryman S All4 M6 daily driver
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