Hi ther my first post. Building a SBC 383 to slap in a C4 1985. The engine i all new parts. not yet assembled block GM-10066034 Edelbrock 5089 64cc heads, comp cams beehive springs (26918) Retainers, locks and seats. PRW 1.6 Pro Series Billet Aluminum and Stud Girdles. Comp Cams Xtreme Fuel Injection; XFI™ 260XFI H13 , High Energy Hydraulic Lifters and Magnum Pushrods. Eagle B13054E 030 rotary assembly with KB 18cc hypopistons and SIR rods and cast crank. King full bearing set and exstra Speed Pro set. Canton Racing Circle Track Wet Sump Oil Pans 11-120M PRW water pump. Melling M155HV oilpump Hedman ELITE Headers; 1-5/8" 68448 + 3" to 2.5" unknown brand muffler system with x pipe ARP Fastener on rods, heads, hedders, etc 90000 Professional Products Harmonic balancer have certainly forgotten something The intake is a portet OEM used base with TPIS ported runner tubes and plenum, 2x58 throttle-body fordracing 24# injectors. Davis Unified Ignition 12600BK Distributor with MSD Street Fire Ignition Control. and micro squirt diy pnp to control the engine with innovate motorsports LM-2 o2 controller. and know to my questions. The hight on install spring hight is 1.750 i was suppose to be 1.8 but i think the retainer combination made i sow. the spring load at 1.750 i 160 lbs and 1.300 is 315 lbs is this to much ? on the seat with a flat tap cam is it possible to masking down the seat 0.05? can the Edelbrock 5089 head take that?