I love the 292. The I6 gets a bad rap when it comes to performance. It's primary and secondary forces cancel out. Something a V-8 can never do. It has 7 mains. People think I6 and they think small. My 292 is punched to 308ci, That's over 5 liters. Mine is being designed for 1300hp but will never see over 1000hp on race gas and 500ish on pump gas. As Mike Kirby once told me "the magic is in the head". The rest of it is just trying not to have the crankshaft leave the building. If you are doing the intake and exhaust I would suggest a lump port kit. They are not expensive and can be done with a few simple tools at home. If you want to get into impressive performance then in my opinion some serious head work needs to be done. They are expensive to build but there is nothing like the sound of an angry I6. They are so well balanced and you will never rev it over 6000 rpm that they last a long time, even built. I know a guy running a 1000hp 292 (turbo) on the strip and he has 8 seasons on the same engine without a rebuild. I'm running a Ryan Falconer V-12 head on mine. Leo talks about it briefly on page 126 and 127 in his latest printing. He's been very helpful to me and sometimes has to reel me in a little. So along with the V-12 head I have Crower billet crank cam and rods. 5 stage dry sump. Electromotive coil over direct fire ignition. 6-71 blower with 2 Quick fuel 650 DP. NOS. Meth. It's going in my 53 3100 with a 5 speed. Sorry so long. Thank you for your time.