Don't have the dollars for a 4age conversion then these are the bits to BUY.
Custom Tuned length 4to1 extractors and 'long runner' twin side draught manifold running twin 38mm solex(twin throat) carbs with cam to suit.
This set up ran at 93 rwkw in a KE70 rally prepped sedan.
Beyond these parts the engine was blue printed standard bar mildly ported shaved heads (no big valves).
Suit 4ac's in KE30 to70's (inlet manifold, carbs + cam definite fit exhaust unknown for an 86).
make an offer