RC Engineering's calcs show that you are good to 302 HP at 43 psi fuel pressure, .50 BSFC, and 100% duty cycle. Of course you can't run the injectors at 100% (except maybe briefly like a drag race, not applicable to aircraft). So at 80% duty cycle the 38 lb injectors should be good for 242 HP. Enjoy your idle!!! Your injectors are big enough unless you P-Port and turn at least 8000 RPM.
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Russell, where are the secondary injectors in this scheme of things.. I see the primaries lurking under the intake in their stock position..
(pictures snipped for bandwidth ettiquite)
Dave
In that particular scheme (rev-1), the secondary injectors were in the TWM throttle body.
In rev-2, I used a Mazdatrix intake, that was modified to add two 1-5/8" ID runners. They ran all the way over to a different TWM TB with all four injectors in it, on the cold side of the engine (bad, don't do that).
Rev-3 started with the same Mazdatrix intake, modified for much shorter runners (about 15" from port to end of TB), and MUCH smoother transition from the runners to the cast intake. There isn't room under the stock cowl for the injector rail on the TB in it's current location, so I bored holes in the cast intake for secondary injectors (see pic). This version used all MSD 525 (50 lb/hr) injectors.
Rev-4 is the same, except that I'm trying MSD 400 (38 lb/hr) injectors for better idle. I'm a bit concerned that these injectors are going to be too small, but we'll see. I've already been able to idle easily at 700-800 rpm, which is less than half what I could do before. I've also noticed that the injectors mounted in the intake are clearly better at idling than the ones in the center housing. I'll likely swap the connectors, and consider the ones in the intake to be the primaries.
There, that's more than you wanted to know :-)
Rusty (hoping the thunderstorms leave my MRI scanners alone)