Is it ok to just start my new engine with the stock computer? It has an extender chip for a 231 with p&p irons, 210/210 6265 and 80# inj. The new engine is stroked, 9.5:1, p&p GN1's, 224/224, 6766 and 80# inj (for now). I'm leary about currently investing in an ECU GN for an engine not even fired, yet???